Wire stretcher



Get. 30, 1923.

- J. GRIMME WIRE STRETCHER Filed April 5, 1922 FIGJS- Patented Get. 30, 1923.

FIRM or HER-MANN'HEINRICH some a 00.. or

semi, GERMANY.

WIRE srnnrcrrnn.

To (AZ 107mm. it may concern;

H Be it known that I, JorrANNns Gniirirn, a citizen of the German Republic residing at (iodesberg-on-the-llthinc Priissia, Ger many have invented Certain new and useful In'rp'roveinents in lVire Stretchers (for which I have filed applicationsin Germany M13 5. I920, and'October a, 1921), and of which thefollowing is a specification. p This invention relates to a wire stretcher which consists of a plateshaped body having nicks in thev ends and in the'up1: eredge a slit which terminates in a circular enlargement.

The stretching is effected, according to this invention, in such a manner that the wire is inserted in the circular enlargement at the innerend of the slit of the wire stretcher, whereupon the; stretcher is turned around its transverse axis so that the wire is: inserted in the lateral nicks, whereby the slipping off of the stretcher, in a lateral direction is prevented.

In order to prevent the stretcher from turning in the opposite direction and the wire be unwound under the pull of the stretched wire a fork-shaped extension is arranged at one end of the stretcher and this extension is bent so that its fork-shaped end embraces the wire when thestretcher turns back, the stretcher beihg this held by the wire. Instead of one fork-shaped extension two such extensions can be provided which are bent in opposite directions.

With the same object in view, via, to prevent the unwinding of the wire from the stretcher, the plate-shaped body can have also deep lateral nicks the arms of which can be bent together after the winding up of the wire. The nicks can however be also leaf-shaped in order to hold the stretcher upon the stretched wire. The stretched wire engages in this case with the arc-shaped parts of the nicks. In order to prevent this wire being cut by the Stretcher the parts around which the wire is wound are rounded off.

For facilitating the gripping oi the stretcher with tongues specially designed for this purpose a notch is provided which is parallel with the long side of the body.

In order that the invention may be clearly understood, I shall proceed to describe the was. sens-1 545372.

same with reference to the form of construction shown by way of exainple on the accompanying drawing, assentl 1 shows in elevation a wire stretcher with fine fork-shaped extension at one end.

Fig. 2 is' a plan View of Fig. i.

Fig. 3 shows the stretcher turned 90 from the position shown in Figure 2 after having stretched the wire.

Fig. 4: sl'rows the stretcher turned 180 from the position shown in Figure 3.

F 5 shows in plan View a stretcher with a fork-shaped extension at each end.

Fig. 6 showsa wire stretcher which has deep nicks in the endsand Fig. 7 is a plan view or Figure 6.

Fig. 8 shows the wire stretcher of Fig. (5 with the arms bent together.

Fig. 9 shows a wire stretcher with leafshaped nicks. I

A plate-shaped body l has nicks 2 at the two ends and a; slit 3 in the upper edge this slit terminating in a circular enlargement the diameter oi x'vhich is greater than the width of the slit; The edges'ot the nicks and of the circular enlargement 4: are rounded ofi in order to preventthe wire being cut or damaged by the stretcher. non-115, arranged parallel to a long side of the body 1' serves to facilitate the gripping of the stretcher with tongues.

At one of the ends of the stretcher an extension 6 is arranged which terminates in a fork 7. i

The slightly stretched wire 8 is inserted through the s'ot 3 into the circular enlarge Inent 4L wherei'ipon the stretcher is turned as shown on Figs. 3 and 4; to stretch the wire. To prevent the stretcher from turning back the fork-shaped end 7 of the extension 6 is placed upon the wire. If it should be necessary to further stretch the wire the stretcher can be turned several times in the manner shown in Fig. 4. The fork-shaped end of the extension is again made to ride upon the wire so that the stretcher cannot move back automatically.

Two fork-shaped extensions can be provided as shown in 5, one at each end of the stretcher so that the stretcher is twice ensured against back rotation.

According to the form of construction 'ofthe long sides of the body 9 is semi-circular at its inner-end. The arms. 12 formed by the nicks 10 are arranged so that they can'be bent together after the winding up of the wire in order to hold the wire securely in the stretched position (Fig. 8).

According to the form of construction shown in Fig. 9 the'body '13 has leafshaped nicks 1 1, After the wire has been wound up on'the stretcher this stretcher is placed so that the stretched wire engages with the arc-shaped parts 15 of the leafshapednicks 14 whereby the turning back of the stretcher is prevented. To further secure the stretcher in its position upon the stretched wire, the armscan be bent together.

Claims:

1. As a new article of manufacture a wire stretcher generally oblong in shape, pro- .vided in one of its longer sides with a notch,

and provided in each of its shorter sides with a notch, and having an extension terminating in a laterally bent notched portion. 2. As a new article of manufacture a wire stretcher generally oblong in shape formed of a sheet of metal, provided in one of its longer sides with'a notch, and provided in each of its shorter sides with a notch, and having an extension terminating in a laterally bent notched portion.

'3. As a new article of manufacture a wire stretcher generally oblong in shape, provided in one of its longer sides with a notch, and provided in each of its shorter sides with a notch, and having an integral j extension terminating in a laterally bent notched portion. v 4L. As a new artlcle of manufacture a having an extension tern'iinating in alaterally bent notched portion.

V 6. As a new article of manufacture a wire stretcher generally oblon in shape, provided in one of its longer sides with a notch enlarged at its bottom, and provided in each of its shorter sides with a notch larger than the notch in the longside, and

having an integral extension terminating in a laterally bent notched portion.

7. As a new article of manufacture a wire stretcher provided with a pair of oppositely placed notches and a third notch lying intermediate said pair ofnotches, said stretcher having an extension terminating ina laterally bent notched portion.

8. As a new article of manufacture a wire stretcher provided with'a pair of op positely placed notche and a third notch lying intermediate said pair of notches,

said stretcher having an extension terminatmg 111 a laterally extending jwire engaging port on. I V

In testimony whereof I aflix my signature in presence of two witnesses.

JOHANNES GBIMMEQ lVitnesses V EnNs'r KonNNnoKn, can Wns'rnorr. 

